WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

F21Y　INDEXING SCHEME RELATING TO THE FORM OF THE LIGHT SOURCES

F21Y 2101/00 Point-like light sources

F21Y 2101/02 ・Miniature, e.g. light emitting diodes [LEDs]

F21Y 2101/025 ・・Laser diodes

F21Y 2103/00 Elongated light sources, e.g. fluorescent tubes

F21Y 2103/003 ・Linear array of LEDs

F21Y 2103/006 ・using electroluminescent light sources, e.g. electroluminescent wires

F21Y 2103/02 ・curved, e.g. ring-shaped

F21Y 2103/022 ・・ring-shaped

F21Y 2103/025 ・・U-shaped

F21Y 2105/00 Planar light sources

F21Y 2105/001 ・2D-array of LEDs

F21Y 2105/003 ・・{characterised by the geometrical disposition of the LEDs, e.g. spacing thereof to create different densities, arrangement of LEDs of different colours in a specific pattern}

F21Y 2105/005 ・・{the substrate or the support being planar but the LEDs not being in the same plane or not having the same orientation, e.g. plate shaped support with steps on which LEDs are mounted}

F21Y 2105/006 ・using electroluminescent light sources, e.g. electroluminescent films

F21Y 2105/008 ・using organic light emitting diodes [OLED]

F21Y 2111/00 Light sources of form not covered by preceding groups

F21Y 2111/001 ・{Non-planar or three-dimensional arrangements of LEDs}

F21Y 2111/002 ・・{the LEDs being disposed on a concave support or substrate, e.g. on the inner side of a bowl shaped support}

F21Y 2111/004 ・・{the LEDs being disposed on a convex support or substrate, e.g. on the outer surface of a portion of a sphere}

F21Y 2111/005 ・・{the LEDs being disposed on the outer surface of a cylinder, e.g. rod shaped support having a circular or a polygonal cross section}

F21Y 2111/007 ・・{the LEDs being on the sides of a polyhedron, e.g. a cube or a pyramid}

F21Y 2111/008 ・・{Assemblies consisting of stacked substrates supporting the LEDs}

F21Y 2113/00 Combination of light sources

F21Y 2113/002 ・of different colors

F21Y 2113/005 ・・the light sources being LEDs or chips of different colors

F21Y 2113/007 ・・・encapsulated in a single LED light source

F21Y 2113/02 ・of different form